Which expression is equivalent to StartFraction 28 p Superscript 9 Baseline q Superscript negative 5 Baseline Over 12 p Superscript negative 6 Baseline q Superscript 7 Baseline EndFraction? Assume p not-equals 0, q not-equals 0.

The equivalent expression is StartFraction 7 Over 3 p Superscript 15 Baseline q Superscript negative 12 Baseline.